DOI : http://dx.doi.org/10.25105/urbanenvirotech.v2i2.4363 Laboratory Study on the Optimization of IPLT Sumur Batu Dewatering Unit Using Different Coagulants Madonna, Fairus, Amelinda p-ISSN 2579-9150; e-ISSN 2579-9207, Volume 2, Number 2, page 134 - 145, April 2019 134 LABORATORY STUDY ON THE OPTIMIZATION OF IPLT SUMUR BATU DEWATERING UNIT USING DIFFERENT COAGULANTS Sandra Madonna * , Sirin Fairus, Nadya Nurul Amelinda Department of Environmental Engineering, Faculty of Engineering and Computer Science, Universitas Bakrie, Jakarta, Indonesia *Corresponding author: [email protected]ABSTRACT Aim: The aim of this study is to determine the most effective type and concentration of coagulant to reduce TDS, TSS, BOD and COD Sumur Batu Fecal Treatment Plant or Instalasi Pengolahan Lumpur Tinja (IPLT) Sumur Batu. Methodology and Results: Using the jar test method at a laboratory scale, the types of coagulants of PAC, Alum and FeSO4 with varied concentration of 70 mg/L, 137.5 mg/L and 200 mg/L were used. Additionally, Polyacrylamide was also used in the study with concentration varied between 0.1 mg/L, 0.6 mg/L, and 1.1 mg/L adjusted to the concentration in the field. Conclusion, significance and impact study: The largest weighting occurred in the alum coagulant, which had 13.03 points. The polyacrylamide coagulant was the best economically when viewing the cost per year, but from a technical point of view, it is not adequately efficient because its ability to allow for the test parameters is still far from the removal ability of the alum coagulant. MANUSCRIPT HISTORY Received January 2019 Revised February 2019 Accepted March 2019 Available online April 2019 KEYWORDS Alum Coagulant Dewatering unit Fecal treatment plant IPLT Polyacrylamide
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DOI : http://dx.doi.org/10.25105/urbanenvirotech.v2i2.4363
Laboratory Study on the Optimization of IPLT Sumur Batu Dewatering Unit Using Different Coagulants Madonna, Fairus, Amelinda
p-ISSN 2579-9150; e-ISSN 2579-9207, Volume 2, Number 2, page 134 - 145, April 2019
134
LABORATORY STUDY ON THE OPTIMIZATION OF IPLT SUMUR BATU DEWATERING UNIT USING DIFFERENT COAGULANTS
Sandra Madonna*, Sirin Fairus, Nadya Nurul Amelinda Department of Environmental Engineering, Faculty of Engineering and Computer Science, Universitas Bakrie, Jakarta, Indonesia *Corresponding author: [email protected]
ABSTRACT
Aim: The aim of this study is to determine the most effective type and concentration of coagulant to reduce TDS, TSS, BOD and COD Sumur Batu Fecal Treatment Plant or Instalasi Pengolahan Lumpur Tinja (IPLT) Sumur Batu. Methodology and Results: Using the jar test method at a laboratory scale, the types of coagulants of PAC, Alum and FeSO4 with varied concentration of 70 mg/L, 137.5 mg/L and 200 mg/L were used. Additionally, Polyacrylamide was also used in the study with concentration varied between 0.1 mg/L, 0.6 mg/L, and 1.1 mg/L adjusted to the concentration in the field. Conclusion, significance and impact study: The largest weighting occurred in the alum coagulant, which had 13.03 points. The polyacrylamide coagulant was the best economically when viewing the cost per year, but from a technical point of view, it is not adequately efficient because its ability to allow for the test parameters is still far from the removal ability of the alum coagulant.
DOI : http://dx.doi.org/10.25105/urbanenvirotech.v2i2.4363
Laboratory Study on the Optimization of IPLT Sumur Batu Dewatering Unit Using Different Coagulants Madonna, Fairus, Amelinda
p-ISSN 2579-9150; e-ISSN 2579-9207, Volume 2, Number 2, page 134 - 145, April 2019
144
Based on Table 4, the largest weighting occurred in the Alum coagulant, which had
13.03 points because it was superior in technical terms and had a fairly economical value. The
polyacrylamide coagulant was the best economically when viewing the cost per year, but from a
technical point of view, it is not adequately efficient because its ability to allow for the test
parameters is still far from the removal ability of the Alum coagulant.
4. CONCLUSION Alum at a dose of 200 mg/L is recommended to be used in the dewatering unit of IPLT Sumur
Batu due to its effectiveness compared to PAC, FeSO4 and Polyacrylamide in decreasing BOD
and COD concentrations. The effectiveness of Alum in decreasing the BOD value is 60.16% with
the regression equation: y = -4.9888x + 1,696, r = 0.9975, while for the value of COD is 59.76%
with the regression equation: y = -7.8885x + 2535.4, r = 0.9422. The effectiveness of TDS
reduction for PAC coagulant is 3 times greater than polyacrylamide (28.50%); TSS for PAC
coagulant is 1.99 times greater than polyacrylamide (34.73%); BOD for Alum coagulant is
2.35 times greater than polyacrylamide (25.52%) and COD for Alum coagulant is 1.89 times
greater than polyacrylamide (31.52%). The Alum coagulant had the biggest weighting of 13.03
points, because it was superior in technical terms and had a fairly economical value.
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DOI : http://dx.doi.org/10.25105/urbanenvirotech.v2i2.4363
Laboratory Study on the Optimization of IPLT Sumur Batu Dewatering Unit Using Different Coagulants Madonna, Fairus, Amelinda
p-ISSN 2579-9150; e-ISSN 2579-9207, Volume 2, Number 2, page 134 - 145, April 2019
145
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